@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
@namespace html url("http://www.w3.org/1999/xhtml");
#star-button{
list-style-image:url("chrome://browser/skin/places/unbookmarked.png");
-moz-image-region:rect(0,16px,16px,0);
margin:2px 5px 0 3px;
padding:0}

#star-button[starred="true"]{
list-style-image:url("chrome://browser/skin/places/bookmarked.png")}